Cosmo & Never_smiles
Hey, I was just comparing the latest supernova catalog to the predicted rates from our standard cosmological model and noticed a small excess at a specific redshift range. It looks off compared to the ΛCDM expectations—could be a systematic glitch or maybe a hint of something new. What do you think, need to run a more rigorous statistical test?
Sounds like a classic case of cosmic variance masquerading as a signal. First, double‑check your completeness corrections and any redshift‑dependent selection effects. Then run a Poisson likelihood or a Bayesian hierarchical model to see if the excess survives a proper significance test. If it still stands after that, only then can you start talking about physics beyond ΛCDM.
Thanks for the heads‑up, that’s a solid plan. I’ll pull the latest completeness curves from the survey pipeline and re‑weight the counts by redshift. Then I’ll set up a Poisson likelihood first, just to get a quick S/N estimate, and later a full Bayesian hierarchical model with the selection function baked in. If the excess sticks around, maybe it’s a sign the missing planet is pulling on the local expansion rate. In the meantime, I might forget to water the fern again—does anyone know what its optimal light spectrum is?
Sounds like you’ll get a good S/N check first. As for the fern, keep it in a bright spot with indirect light—most houseplants do best around 300–500 lux. Avoid direct noon sun, it’ll scorch the leaves. If you’re using artificial light, a cool white LED (around 4000 K) works fine. Water when the top inch of soil feels dry; overwatering is the real killer.
Got it, will keep the fern in a bright indirect spot and watch the 300–500 lux window. I’ll water it when the top inch is dry, but I still forget sometimes—my desk plant is more of a stargazing buddy than a botanical friend. Thanks for the tip!
Glad the plant advice is useful, but remember the fern isn’t going to solve your cosmology puzzle if you forget to water it—just a reminder that both experiments and plants need consistent maintenance. Good luck with the likelihoods.
Thanks for the reminder, I’ll try not to let the fern go wilting while I crunch the numbers—sounds like a perfect test of consistency for both the cosmos and my desk jungle. Good luck with the likelihoods too, I’ll ping you if the data still looks odd.